论文标题
人们应该选择哪种配方将3D HTS电动杆与铁磁材料进行建模?
What Formulation Should One Choose for Modeling a 3D HTS Motor Pole with Ferromagnetic Materials?
论文作者
论文摘要
我们讨论了在3D电动极模型的背景下,几种有限元公式对于包含高温超导体(HTS)和铁磁材料(FM)的非线性系统的相关性。根据其数值鲁棒性和效率评估该制剂。我们提出了耦合的H-PHI-A构造作为最佳选择,通过FM中的A形成对问题进行建模,并在其余域中建立H-PHI构造。在保持较低的自由度的同时,H-PHI-A形成保证了强大的分辨率,并且与标准配方相比,处理HTS和FM非线性所需的迭代次数。
We discuss the relevance of several finite-element formulations for nonlinear systems containing high-temperature superconductors (HTS) and ferromagnetic materials (FM), in the context of a 3D motor pole model. The formulations are evaluated in terms of their numerical robustness and efficiency. We propose a coupled h-phi-a-formulation as an optimal choice, modeling the problem with an a-formulation in the FM and an h-phi-formulation in the remaining domains. While maintaining a low number of degrees of freedom, the h-phi-a-formulation guarantees a robust resolution and strongly reduces the number of iterations required for handling the nonlinearities of HTS and FM compared to standard formulations.